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Open data
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Basic information
Entry | Database: PDB / ID: 6n4y | |||||||||
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Title | Metabotropic Glutamate Receptor 5 Extracellular Domain with Nb43 | |||||||||
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![]() | MEMBRANE PROTEIN / Cell Surface Receptor Nanobody | |||||||||
Function / homology | ![]() A2A adenosine receptor binding / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / Class C/3 (Metabotropic glutamate/pheromone receptors) ...A2A adenosine receptor binding / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / Class C/3 (Metabotropic glutamate/pheromone receptors) / glutamate receptor activity / Neurexins and neuroligins / protein tyrosine kinase activator activity / regulation of synaptic transmission, glutamatergic / positive regulation of calcium-mediated signaling / dendritic shaft / protein tyrosine kinase binding / learning / locomotory behavior / synapse organization / postsynaptic density membrane / G protein-coupled receptor activity / Schaffer collateral - CA1 synapse / cognition / cellular response to amyloid-beta / chemical synaptic transmission / G alpha (q) signalling events / dendritic spine / learning or memory / positive regulation of MAPK cascade / neuronal cell body / dendrite / regulation of DNA-templated transcription / glutamatergic synapse / identical protein binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||
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Method | ![]() ![]() ![]() | |||||||||
![]() | Koehl, A. / Hu, H. / Feng, D. / Sun, B. / Chu, M. / Weis, W.I. / Mathiesen, J.M. / Skiniotis, G. / Kobilka, B.K. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural insights into the activation of metabotropic glutamate receptors. Authors: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / ...Authors: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / Rasmus Fonseca / William I Weis / Jesper M Mathiesen / Georgios Skiniotis / Brian K Kobilka / ![]() ![]() ![]() ![]() Abstract: Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich ...Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich domains to their 7-transmembrane domains. Spectroscopic studies show that signalling is a dynamic process, in which large-scale conformational changes underlie the transmission of signals from the extracellular Venus flytraps to the G protein-coupling domains-the 7-transmembrane domains-in the membrane. Here, using a combination of X-ray crystallography, cryo-electron microscopy and signalling studies, we present a structural framework for the activation mechanism of metabotropic glutamate receptor subtype 5. Our results show that agonist binding at the Venus flytraps leads to a compaction of the intersubunit dimer interface, thereby bringing the cysteine-rich domains into close proximity. Interactions between the cysteine-rich domains and the second extracellular loops of the receptor enable the rigid-body repositioning of the 7-transmembrane domains, which come into contact with each other to initiate signalling. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 498.5 KB | Display | ![]() |
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PDB format | ![]() | 404.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.8 MB | Display | ![]() |
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Full document | ![]() | 1.8 MB | Display | |
Data in XML | ![]() | 84.9 KB | Display | |
Data in CIF | ![]() | 113.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 0345C ![]() 0346C ![]() 0347C ![]() 6n4xC ![]() 6n50C ![]() 6n51C ![]() 6n52C ![]() 3lmkS S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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4 | ![]()
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Unit cell |
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Components
-Protein / Antibody , 2 types, 8 molecules ABCDEFGH
#1: Protein | Mass: 67395.633 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Antibody | Mass: 13354.672 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Details: Nanobody 43 / Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Sugars , 5 types, 8 molecules 
#3: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
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#4: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
#5: Polysaccharide | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
#6: Polysaccharide | alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
#7: Sugar | ChemComp-NAG / |
-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.73 Å3/Da / Density % sol: 54.9 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.5 Details: 18-20% PEG 3350 0.15M Potassium Nitrate 1% Benzamidine |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||
Detector | Type: DECTRIS PILATUS 6M / Detector: PIXEL / Date: May 23, 2016 | ||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.97946 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||
Reflection | Resolution: 3.26→39.6 Å / Num. obs: 49878 / % possible obs: 98.4 % / Redundancy: 3.5 % / CC1/2: 0.926 / Rmerge(I) obs: 0.132 / Rpim(I) all: 0.083 / Rrim(I) all: 0.156 / Net I/σ(I): 7.6 / Num. measured all: 174911 / Scaling rejects: 21 | ||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 3LMK Resolution: 3.262→38.87 Å / SU ML: 0.46 / Cross valid method: THROUGHOUT / σ(F): 1.33 / Phase error: 28.09
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 170.07 Å2 / Biso mean: 79.1425 Å2 / Biso min: 34.3 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 3.262→38.87 Å
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 14
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